Sound-conveying tube for talking-machines.



E. R. JOHNSDN.

* SOUND CONVEYING TUBE FOB TALKING MACHINES.

APPLIOATION FILED 1320.24. 1903.

1,071,055. 'Patented Aug.`26,1913.

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To all whom t may concern.'

Be it known that l, ELDninfon R. JOHNSON, a citizen of the United States, anda resident of the city of Philadelphia, State of -llfennj Sylvania have invented certain nevir and useful lmprovements in Sounrl-Conveying rlubes for Talking-Machines, ofi-Which the following is a specification.

The main objects of this invention are ,to provide in a talking machine simple and eflicient means for supporting a sound box and for conveying sound `waves therefrom; and to provide other improvements, as will appear hereinafter ln the accompanying drawings, Figure 1 is a side elevation of a talking machine constructed in accordance with this invention; Fig. 2 a'fragmentary top plan view partly in section of a portion of the same; and Fig. 3 an enlarged fragmentary rear end elevation of a portion of the same. y

lleferring to the drawings, one embodiment of this invention comprises the .usual casing or cabinet l, containing "the usual talking machine motor. Mounted upon the casing l is the usual turntable 2, which is actuated by the motor in the casing, and over 'which is mounted a tubularradial sound box arm or member il, to one cud of `which is attached the usual sound'boii 5 communicating therewith.

Yl`he outer end 6 of the sound box arm 'All is curved or bent horizontally ,substantially at right angles to the main portion of the arm and is connected With the sound box so as to carry the diaphragm thereof in a vertical plane substantially parallel with the longitudinal axis of the main portion of the arm il. rlhe inner end 7 of the arm t is turned or curved upwardly or away from and substantially at right angles to the main portion of the arm and telescopes tightly but removably in the enlarged end 9 of a curved tubular elbow or member 8, the inner diameter ofthe enlarged end of the elbow being substantially-the same as the outer diameter' of the end 7 of the sound boa tube )telescoping therein.

flor supporting the sound box arm upon horizontal and verticalaxes, the enlarged portion 9 of the tubular. elbow 8 is provided with horizontal trunnions lt), which enter a U-shaped yolze l1, which ispivoted on a vertical axison a hxed'braeliet '12, by means ,upeciueirttun of Letteralntent.

duplication nieu @member 5th,

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of a stud orpintle 13 which enters a suitable hollow or recess in the fixed bracket 12.

The usual Hexible ear tube 14, provided with the usual ear pieces, may be connected tothe upper end ofthe tubular clbouy 8, but an amplifying horn mightbe substituted for this ear tube.

Une advantage ofthe construction .above Idescribed is that when used in combination with theflenible ear tube, the point of attachment of the ear 'tube is in sucha position that in the ordinary operation of t-he machineanytension upon the ear tube will be substantially in a line through the 'horizontal and vertical pivots supporting the sound bontube,"thus permitting the user of the machine to move about freely Without interfering with the travel of the sound box, or bringing any pressure to-bear upon the sound box, that would lift the sound box from the record or cause a perceptible change in the character of the reproduction.

@n account `of'this advantage this construc- 1 tionis particulariy .adapted for use in connection vvith'the study of'foreign languages from. sound records, as it enables the user to `remain in communication with the machine While moving about to consult text books or references, Without interfering with the operation ofthe machine. E

rfliis invention may be applied either to the disk form or to the cylindrical forni of talking machine. lurthemnore, although only one form has been shown in which this invention may be embodied, various changes might be made in the construction set forth, vvithout departing from thepirit of ithis invention or the scope of tie appended claims.

Having thus fully described my invention what claim. and desire to protectby Letters flatent of the 'United States is:

l. ln a talkingmacbine, a sound bout, a

sound bor tube conneetedfferewith having an .upwardly turned portion, atubularmember telescoping with saidportion and form ing anintegral sound conduit, trunnions disposed substantiallyat `idole joint. hetweensaid sound boa tube v.and said tubular member, pivoted means supporting said ,teunnions, .and a sound conveying device Neem municating `with said tubular,manchen7 said sound'boir tube being free to swingabout said trunnions as an axis.

ne' en npweilly turned pon tubular ineinber teleecoping :ion and forming :in integral c one ot Seid members being receive the other ot' said inemnions ceri-led by seid enlarged ivoted ineens :for supporting Said l conveying device cond tubular ineniber being free Yto swing e ril LL XIS- a sonno bor, e

1 s e l taining ne une, er sound bon cnn or nieinber connected 'therewith baring' :in upwardly turned portio zi second tubular member telescoping with said portion, one oi smid members beingI enlarged to receix'e tbe other of seid ineinb rs, trunnione carried by Seid enlarged nieinben'rerticelly piroted ineens for sup imrtin1 seid trunnions, :ind e.. flexible tn'be connected with seid second tubular member, seid sound bor; erin and seid tubular telescoping ineinber being treeto Swing about onnione as an axis.

Sound recording or reproducing inecliine, e sound conveying rneens comprising e boiler: erin bent upwardly at its 'f .1nd carrying a. sound bon et its f'i bellow elbow having 2i Veron telescoping rietionelly en seid upwardly bent portion of the lio *be seid telescopic and bent pr d upon e fined part of nerizontelly end Ven if. sound recording or reproducing inecliine, e Sound conveying tube comprisbollen' bent upwardly et its inend carrying a sound bof; ite

/ ir bellow elbow inonnt-ed to n'itli e bound con7 of e tubular sound box i i outer end connected therewitli and baring its inner end turned et an :ingle to 'the mein portion of said arm, end a tubular elbor" connected to and communici aires.

f niecbine, tbe combination oon", of e tubuler sound boi; ts enter end cmineced there inner end turned et "1e inein n'nli :i Sound :i tubular Sound box erin baring .ts end connected tberewith and burn-iii inner end turned at. en anule to tbe niain portion of Seid arm, and e tubular elbon conne d to and supporting said erin bi "rictionel engagement.

9. in e talking incliine7 tbe combination with e sound bon, of tubular sound box erin having its outer end connected tliereto and its inner end turned an angle to t-lie mein portion of said erin, end n tubular elbow rigidly connected to und communicating With seid inner end, Seid elbow being mounted to oscillzite on transverse intersecting axes.

1G, In a talking; machine, the combination 'itb e Sound box, of e tubular sound box erm having its outer end connected thereto and its inner end turned at en :ingle to the mein portion of Seid erin, and e tubular elbow rigidly but detecnebly connected to and connnnniceting with seid inner end.

ll. in e 'talking niecbine, the combination Wit-li e Sound box, orn e tubular sound box arm baring its outer end connected thereto, end its inner end turned et an angle te tbe mein portion oi tbe errn, e tubular elbon7 det-eebebljy connected to and supporting seid arm by frictionel engagement and ineens mounted to swing upon a ified anis for supporting seid elbow.

in tellf' niecliine the combination with i seninr or e tubular sound `box erin lievi end connected thereto,

end its i. ned et. en angle to tlie mein poi erin. a 'tubular elbow deteclmblj,v c ej; rrictionel engage ment to and e" mounted npc seid el i ed exis for supporting said erin, and ineens 'i :tree to oscileens.

nrodneing machine, mounted in seid noting erm mounted f `e te swing verticallyn y connected with seid erm sound away from seid sup-i supportya y support, et one end and Ineens port.

le. in e, e rnc; reproducing ineclnne, :i support, e jolie rotatably mounted on seid supportj ineen, i seid support, seid seid yolre firmly conneco for cl or conducting sound to ineens being mounted in rert'ioelly, and Ineens seid first mentioned dncing machine, ljrfrnounted on seid for conduct-ing' sound to seid ineens for conveying sound Aic support, seid ineens being n olie to Swing vertically and firmly connected torenroducing machine, e

support, a yoke rotatably mounted in said support, means for conducting sound toward to swing vertically, and said first mentioned means being telesco ed Ainto said last mentioned means and rictionally held in the same. 17. In a sound reproducing machine, a sound conveyer comprising -two substantially paralleltelescopic sections, each havin a portion turned toward the other of said sect-ions, lsaid portions being firmly joined in telescopic relation, a support for said sound conveyer, and means providing an axis of oscillation for said conveyerat the telescopic junction thus formed.

18. In a sound reproducing machine, a support, a sound conveying arm comprising a vertical portion at said support, a portion for conducting sound'toward said supportv and a port-ion telescoped with said vertical portion and rictionally engaged therewith for conveying sound away from said support, and means for mounting said arm on said support to swing horizontally and vertically.

1,9. In a sound reproducing machine, a support, a sound conducting arm mounted thereon to swing vertically and horizontally, said arm consisting of a portion extending upwardly and then horizontally from said support and a second portion extending downwardly and then horizontally from said support, said portions being firmly connected with each other.

20. In a sound reproducing machine, a support, a sound conducting arm mounted thereon to swing vertically and horizontally,

said arm consisting of a portion extending upwardly and then horizontally from said support and .a second ortion extending downwardly and then iiorizontally from said support and said portionsbeing telescoped and frictionally engaged with each other.

21. In a sound reproducing machine, the combination with a support, of a 'sound conduit pivoted intermediate of its length and comprising relatively movable portions frictionally connected to form an integral substantially rigid structure arranged to rock as a whole on said ivot.

22. In a sound repro ucing machine, the combination with a support, of a sound conduit pivoted intermediate of its length and comprising relatively adjustable ortions frictionally connected to form an integral 'substantially rigid structure and arranged to be relatively shifted into different intersecting planes, and arranged to rock as a whole on said pivot independently of their respective positions.

23. Ina sound reproducing machine, a sound conveyer comprising horizontally disposedsections, each having a portion op-v positely turned substantially normal thereto and firmly joined in telescopic relation, a support for said sound conveyer, and means providing an axis of oscillation for said conveyer at the telescoped junction thus formed.

In witness whereof, I have hereunto set my hand this 21st day of December, 1903.

ELDRIDGE R. JOHNSON.

Witnesses:

FREDK. C. EBEBHARDT, CEAS. K. BENNETT. 

